Stand lamp



Aug. 17 1926. 1,596,184

P.:M. Ho'rcHKlN STAND 'LAMP Filed June 18. 1923 2 Sheets-Sheet 1 illumin `Aug. 17 1926. 1,596,184

P. M. HOTCHKIN STAND LAMP Filed June 18. 1923 2 Sheets-Sheet 2 Cvry l v J0 Patented Aug. 17, 1926.

UNITED STATES PAUL M. HOTCHKIN, OF CHICAGO, ILLINOIS.

STAND LAMP.

Application mea :une 1s, 192s. serial No. 645,973.'

The present invention is related to electrical illuminating apparatus exemplified by the portable ornamental lamp of the floor and table type.

lts main and primary object is to'provide a lamp of this character having provision for indirect illumination, and at the same time tov utilize a portion of the flux of the main illuminating unit for ornamental lighting purposes, as well as to illuminate by direct rays the area immediately around and beneath the lamp. By such construction the rays of the main illuminating unit pass out in the form of indirect light and constitute the main source of illumination, while a portion of the rays emanating from such main illuminating unit are utilized to afford a softl light for the shade of the lamp and the area immediately therebeneath, thus providing a single structure possessing the advantages of both direct and indirect lightgThe invention also contemplates a lamp of the character recited which embodies therein novel and efficient means for adapting the same to varying sizes and capacities of the illuminating units which may be employed therewith, thus insuring proper focusing of the reflector and enabling the latter to be adjusted in relation to the illuminating unit to obtain the highest eciency in the projection of the rays impinging on the reiiector.

Other objects and advantages of the invention will appear as the nature of the improvements is better understood, the invention consisting substantially in the novel construction, combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and finally pointed out in the appended claims.

The form of the invention herein depicted illustrates a practical adaptation ofthe inventive concept, but it is to be understood that this is merely for the purpose of illustration and is not to be construed in a restricting or limiting sense.

In the drawings- Figure 1 is a side elevation of a stand lamp embodying the herein described invention, the shade thereof being illustrated in section.

Figure 2 is a vertical transverse vsectional view of the reflector, the diffuser associated therewith, and the means for supporting the reiector in associated relation to the lamp base.

Figure 3 is a side elevation, partially in section, of the tubular support for the reector.

Figure 4 is a similar view of the adjusting ring for the reflector.

Figure 5 is a topplan View of the shade support. v

Figure 6 isa fragmentary sectional view of the reflector illustrating a modification thereof.

Referring now in detail to the accompanying drawings, the numeral 10 designates the pedestal of the lamp. rlhis may be either of the elongated form as is common to iioor lamps, or it may be of that form commonly found in table lamps. This4 pedestal forms no part of the invention, and may be of any construction, material and design desired. Surmounting the pedestal 10, and suitably connected thereto, is the base 11 of the lamp, said base being in the form of a socket cluster. it contains the usual switching mechanism found in clusters of this type, and this switching mechanism may be of any approved form for the purposes intended. rlhe b-ase 1]. is provided with a plurality of radial sockets 12 into which lamp bulbs 13 are inserted. The lamp bulbs 13 constitute a source of auxiliary light as will be presently explained. The switching mechanism for the lampbulbs 1-3 is controlled by a pendent chain 14, thus affording means lfor operating the bulbs 13 independently of the other illuminating units, as also will presently appear.

At the central portion of the base 11 is arranged a vertically extending socket 15. This socket receives the main illuminating bulb 16, and the latter.\is preferably of such capacity as 'to afford 'a relatively strong light in comparison with the light afforded by the bulbs 13. The switching mechanism for the socket 15 and the 1am 16 contained tlerein is controlled by a pen entl pull chain 1 Surrounding theysocket 15 is a tubular support 18. The walls of the support 18 are screw threaded, as at 19, and its lower end is provided lWith an opening 20 which receives the socket 15. Surrounding said opening 20 is a flange 21 which is clamped into engagement with the adjacent material of lthe cluster 1l, thereby providing means for connecting the ltubular support 18 rigidly with the base 11.

Surrounding the tubular support 18 is an adjusting ring 22. The walls of this ring are also s'crewthreaded in order to engage the screw threaded walls of the support 18, and at the lower end of the adjusting ring 20 is an outwardly extending supporting flange 23 having an upturned rim 24. The flange 23 constitutes a seat for the lower end of a combined reflector and dif#` fuser 25. The construction of the reflector and diffuser 25 is more clearly illustrated in Figure 2, from which it will be observed that said unit includes a reflector 26 which extends from the upper end of the unit to a point substantially midway between the ends thereof, below which point is located a diffuser 27. These elements 26 and 27 either may be integral, or they may be separate and suitably associated with each other. The design and shape of the two are not material, and such design as may be most appropriate for accomplishing the functions of each may be utilized. The .reflector 26 may be made from. glass, metal or other suitable materials and it is through the medium of this element that the indirect lighting effect of the lamp is attained.

The diffuser 27 is of such niaterialthat the light rays emanating from the light bulb 16 readily may pass therethrough and be diffused thereby. Its function is to afford direct illumination of the area immediately beneath and around the lamp, and likewise to illuminate a shade 28 which is supported by the top of the reflector 26. To this end a detachable ring 29 is mounted on the upper edge of the reflector 26, said ring being provided with inwardly extendling fingers 30 for retaining the ring 29 in position, and said shade 28 is connected directly to the ring 29 for the purposes stated. It will be manifest that the light passing through the diffuser 27 will be utilized in illuminating the shade 28, and because of the diffused character of these rays this light will be relatively soft in contradistinction to the light projected by the reflector 26.

As before indicated, the lamp bulbs 13 constitute an auxiliary source of light, but perform the same function as the diffuser 27 in that the rays passing therefrom are also utilized in the illumination of the shade 28, as well as the area immediately beneath and around the lamp.

As indicating a modification of the design and arrangement of the combined reflector and diffuser, vthe construction illustrated in Figure 6 may be employed. In

such construction the combined unit includes the reflector 31 positioned at the lower end of the unit, and constituting substantially the major portion thereof, While they diffuser 32 is located at the top.

Obviously, the diffusing elements 27 and 32 may be clear or transparent, or the same may be translucent. In either event the direct rays of the lamp bulb 16 are utilized in the manner hereinbefore described and for the purposes intended.

The purpose of the ring 22 is to adjust the combined reflector and diffuser vertically of the support 1'8 in accordance with the varying sizes and capacities of the lamp bulbs which may be employed with the socket 15. For instance, a lamp of greater wattage will require the combined reflector and diffuser to be positioned at a higher point than when a lamp of less wattage is employed. Therefore, by proper adjustment of the ring 22 along the tubular support 18 these conditions may be cared for and the correct focusing of the reflector to compensate for variations in the sizes of the lamps readily attained.

In the use of the herein described invention the auxiliary lamps 13 may or may not be illuminated when the lamp bulb 16 is lighted. The added light from the bulbs 13 augments the direct illumination from the diffusing element 27, but if it be desired that the strength of the direct light shall be diminished, reliance is placed upon the diffusing element 27 alone for such illumination. By the provision of the separate and independent switching mechanisms controlled lby the pull chains 14 and 17 these conditions may be controlled with facility and ease. With the lamp bulb 16 lighted the rays emanating therefrom will impinge upon the inner surface of the reflector 26 and by the latter projected against the ceiling in order to obtain the indirect illumination hereinbefore referred to. But a portion of the flux of the lamp bulb 16 will pass through the diffuser 27 and be utilized in illuminating the shade 28 and the area surrounding the lamp and below the latter, as hereinbefore stated.

I claim:

l. In a lamp of the class described, the combination with a base having a socket for the reception of an illuminating unit, of a combined reflector and diffuser associated with said base about the illuminating unit in the socket for utilizing the flux of the illuminating unit for both direct and indirect illumination, an exteriorly screwthreaded tabular support mounted at its lower end upon the base about said socket, and an interiorly screw-threaded tubular support teliscopically mounted upon the first mentioned support for Vertical adjustment upon rotation relative thereto and llO provided at its lower end with a seat upon which the lower end of the reflector and diffuser is supported.

2. In a lamp of the class described, the combination with a base having top and side sockets for the reception of illuminating units, of a combined reflector and difuser associated with said base between the top and side illuminating units inthe top and side sockets for utilizingl the flux of the top illuminating unit for both direct and indirect illumination, a shade associated with said reflector and dii'user with its upper end supported by the upper end of the reflector and diiuser, a helically corrugated tube flan ed at its lower end and supported by suc Bange upon the base about the top socket, and a similarly corrugated tube teliscopically mounted upon the first mentioned tube for vertical adjustment upon rotation relative thereto and flanged at its lower end to provide an annular groove in which the lower end of the re-lector and diffuser is seated.

In testimony whereof lI have hereunto subscribed my name.

rPAUL M. HOTCHKIN. 

